Home / 231,245,918.82-319,139,549.43-126,844,168.22

Finding the Fourth Proportional to 231,245,918.82, 319,139,549.43 and 126,844,168.22

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Solution

The fourth proportional to 231,245,918.82, 319,139,549.43 and 126,844,168.22 is: 175,056,022.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,245,918.82 : 319,139,549.43 = 126,844,168.22 : x
  2. Step 2: Convert to fraction form
    231,245,918.82/319,139,549.43 = 126,844,168.22/x
  3. Step 3: Cross multiply
    231,245,918.82x = 319,139,549.43 × 126,844,168.22
  4. Step 4: Simplify right side
    231,245,918.82x = 40,480,990,691,958,232
  5. Step 5: Solve for x
    x = 40,480,990,691,958,232/231,245,918.82
  6. Step 6: Final answer
    x = 175,056,022.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.